Method to prepare a scintillator layer for application onto a photosensor layer to produce an x-ray detector or element thereof

Abstract

A scintillator layer is applied onto a photosensor layer to produce an x-ray detector or an x-ray detector element for imaging detection of ionizing radiation. The production process is improved by, in the production of the scintillator layer, an adhesive layer with a protective layer is applied onto the scintillator layer. This can occur layer by layer or a transfer adhesive tape that already includes the protective layer as a protective film can also be used.

1 . A scintillator prepared for application onto a photosensor layer for a detector or ionizing radiation for imaging, said scintillator layer comprising an adhesive layer on at least one side of said scintillator layer, said adhesive layer having a removable protective film thereon, said protective film being removed before gluing said scintillator layer to said photosensor layer. 
     
     
         2 . A scintillator layer as claimed in  claim 1  wherein said scintillator layer is electro-optically tested after application of said protective layer. 
     
     
         3 . A scintillator layer as claimed in  claim 1  comprising a parylene layer applied on said protective layer to seal said protective layer. 
     
     
         4 . An x-ray detector or x-ray detector element for detecting ionizing radiation for imaging comprising a scintillator layer with an adhesive layer applied on at least one side thereof, said adhesive layer having a protective film that is removed therefrom before gluing the scintillator layer to a light-sensitive side of a photosensor layer, said adhesive layer being placed between the scintillator layer and the light-sensitive side of the photosensor layer. 
     
     
         5 . An x-ray detector or x-ray detector element as claimed in  claim 4  wherein said scintillator layer is electro-optically tested before gluing to said photosensor layer with the adhesive layer and protecting layer applied thereto. 
     
     
         6 . An x-ray detector or x-ray detector element as claimed in  claim 4  comprising a parylene layer applied on said protective layer to seal said protective layer. 
     
     
         7 . A method for preparation of a scintillator layer for attachment to a photosensor layer, comprising:
 applying an adhesive layer onto at least one side of the scintillator layer; and   applying a protective layer onto said at least one adhesive layer.   
     
     
         8 . A method as claimed in  claim 7  comprising coating said adhesive layer onto said scintillator layer. 
     
     
         9 . A method as claimed in  claim 7  comprising applying said adhesive layer onto said scintillator layer by serigraphy. 
     
     
         10 . A method as claimed in  claim 7  comprising employing said adhesive layer as a paste-like adhesive. 
     
     
         11 . A method as claimed in  claim 7  comprising applying said adhesive layer as a liquid adhesive. 
     
     
         12 . A method as claimed in  claim 7  comprising applying said adhesive layer using a transfer adhesive tape comprising the adhesive layer and a protective film covering the adhesive layer on at least one side thereof. 
     
     
         13 . A method as claimed in  claim 7  comprising applying the adhesive layer by applying a transfer adhesive tape comprising the adhesive layer having a protective film thereon at a side opposite to said scintillator layer, and retaining said protective film on said adhesive layer until immediately before gluing said scintillator layer onto the photosensor layer. 
     
     
         14 . A method as claimed in  claim 13  comprising laminating the transfer adhesive tape to the scintillator layer. 
     
     
         15 . A method as claimed in  claim 14  comprising laminating the adhesive tape using at least one roller. 
     
     
         16 . A method as claimed in  claim 15  comprising laminating the adhesive tape also using a stationary blade. 
     
     
         17 . A method as claimed in  claim 7  comprising applying a parylene layer onto said protective film. 
     
     
         18 . A method as claimed in  claim 7  comprising applying an additional protective layer onto said protective film, said additional protective layer being comprised of inorganic material selected from the group consisting of TiO 2 , Al 2 O 3 , SiO, and SiN x . 
     
     
         19 . A method to produce an x-ray detector or an x-ray detector element for ionizing radiation for imaging, comprising:
 providing a scintillator layer;   applying an adhesive layer onto at least one side of the scintillator layer;   applying a protective film on a side of the adhesive layer facing away on said scintillator layer;   removing said protective film; and   gluing the scintillator layer to the photosensor layer with the adhesive layer.   
     
     
         20 . A method for preparation of a scintillator layer for attachment to a photosensor layer, comprising:
 applying an adhesive layer onto at least one side of the scintillator layer; and   applying a protective layer onto said at least one adhesive layer.   
     
     
         21 . A method as claimed in  claim 20  comprising coating said adhesive layer onto said scintillator layer. 
     
     
         22 . A method as claimed in  claim 20  comprising applying said adhesive layer onto said scintillator layer by serigraphy. 
     
     
         23 . A method as claimed in  claim 20  comprising employing said adhesive layer as a paste-like adhesive. 
     
     
         24 . A method as claimed in  claim 20  comprising applying said adhesive layer as a liquid adhesive. 
     
     
         25 . A method as claimed in  claim 24  comprising applying said adhesive layer using a transfer adhesive tape comprising the adhesive layer and a protective film covering the adhesive layer on at least one side thereof. 
     
     
         26 . A method as claimed in  claim 25  comprising applying the adhesive layer by applying a transfer adhesive tape comprising the adhesive layer having a protective film thereon at a side opposite to said scintillator layer, and retaining said protective film on said adhesive layer until immediately before gluing said scintillator layer onto the photosensor layer. 
     
     
         27 . A method as claimed in  claim 25  comprising laminating the transfer adhesive tape to the scintillator layer. 
     
     
         28 . A method as claimed in  claim 20  comprising laminating the adhesive tape using at least one roller. 
     
     
         29 . A method as claimed in  claim 20  comprising laminating the adhesive tape also using a stationary blade. 
     
     
         30 . A method as claimed in  claim 20  comprising applying a parylene layer onto said protective film.